Datasheet
bq24195
bq24195L
SLUSB97 –OCTOBER 2012
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
V
VBUS_UVLOZ
< V
VBUS
< V
ACOV
and V
VBUS
> V
BAT
+ V
SLEEP
, T
J
= –40°C to 125°C and T
J
= 25°C for typical values unless other
noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
BOOST MODE OPERATION
V
OTG_REG
Boost mode output voltage I(PMID) = 0 5.12 V
V
OTG_REG_ACC
Boost mode output voltage accuracy I(PMID) = 0 –2% 2%
bq24195L 1.0 A
I
OTG
Boost mode output current on PMID
bq24195 2.1
bq24195L 3.0 V
V
OTG_BAT
Battery operating voltage for boost mode
bq24195 3.2 V
bq24195L 2.76 3.8 A
V
OTG_ILIM
LSFET cycle-by-cycle current limit
bq24195 4.83 6.5
REGN LDO
V
VBUS
= 10V, I
REGN
= 40mA 5.6 6 6.4 V
V
REGN
REGN LDO output voltage
V
VBUS
= 5V, I
REGN
= 20mA 4.75 4.8 4.85 V
I
REGN
REGN LDO current limit V
VBUS
= 10V, V
REGN
= 3.8V 50 mA
LOGIC I/O PIN CHARACTERISTICS (OTG, CE, STAT)
V
ILO
Input low threshold 0.4 V
V
IH
Input high threshold 1.3 V
V
OUT_LO
Output low saturation voltage Sink current = 5 mA 0.4 V
I
BIAS
High level leakage current Pull up rail 1.8V 1 µA
I
2
C INTERFACE (SDA, SCL, INT)
V
IH
Input high threshold level VPULL-UP = 1.8V, SDA and SCL 1.3 V
V
IL
Input low threshold level VPULL-UP = 1.8V, SDA and SCL 0.4 V
V
OL
Output low threshold level Sink current = 5mA 0.4 V
I
BIAS
High-level leakage current VPULL-UP = 1.8V, SDA and SCL 1 µA
f
SCL
SCL clock frequency 400 kHz
DIGITAL CLOCK AND WATCHDOG TIMER
f
HIZ
Digital crude clock REGN LDO disabled 15 35 50 kHz
f
DIG
Digital clock REGN LDO enabled 1300 1500 1700 kHz
t
WDT
REG05[5:4]=11 REGN LDO enabled 136 160 sec
TYPICAL CHARACTERISTICS
Table 1. Tables of Figures
FIGURE NO.
CHARGING EFFICIENCY vs. CHARGING CURRENT Figure 1
BOOST MODE EFFICIENCY vs PMID LOAD CURRENT Figure 2
BOOST MODE PMID VOLTAGE REGULATION vs PMID LOAD CURRENT Figure 3
BAT VOLTAGE vs TEMPERATURE Figure 4
INPUT CURRENT LIMIT vs TEMPERATURE Figure 5
CHARGE CURRENT vs TEMPERATURE Figure 6
Power Up from USB100mA (VBAT 3.2V) Figure 7
Charge Enable (VBUS 5V) Figure 8
Charge Disable (VBUS 12V) Figure 9
Input Current DPM Response without Battery (VBUS 5V, IIN 3A, Charge Disable) Figure 10
PWM Switching Waveform (VBUS 12V, VBAT 3.8V, ICHG 3A) Figure 11
PFM Switching Waveform (VBUS 9V, No Battery, ISYS 10 mA, Charge Disable) Figure 12
Boost Mode Switching Waveform (VBAT 3.8V, ILOAD 1A) Figure 13
Boost Mode Load Transient (VBAT 3.8V) Figure 14
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